Single request to update

source/ErrorView.mc

@@ -116,10 +116,10 @@ class ErrorView extends ScalableView {
     static function unShow() as Void {
         if (mShown) {
             WatchUi.popView(WatchUi.SLIDE_DOWN);
-            // The call to 'updateNextMenuItem()' must be on another thread so that the view is popped above.
+            // The call to 'updateMenuItems()' must be on another thread so that the view is popped above.
             var myTimer = new Timer.Timer();
             // Now this feels very "closely coupled" to the application, but it is the most reliable method instead of using a timer.
-            myTimer.start(getApp().method(:updateNextMenuItem), Globals.scApiResume, false);
+            myTimer.start(getApp().method(:updateMenuItems), Globals.scApiResume, false);
             // This must be last to avoid a race condition with show(), where the
             // ErrorView can't be dismissed.
             mShown = false;

source/HomeAssistantApp.mc

@@ -35,10 +35,8 @@ class HomeAssistantApp extends Application.AppBase {
     private var mUpdateTimer       as Timer.Timer       or Null;
     // Array initialised by onReturnFetchMenuConfig()
     private var mItemsToUpdate     as Lang.Array<HomeAssistantToggleMenuItem or HomeAssistantTemplateMenuItem> or Null;
-    private var mNextItemToUpdate  as Lang.Number  = 0;     // Index into the above array
     private var mIsGlance          as Lang.Boolean = false;
     private var mIsApp             as Lang.Boolean = false; // Or Widget
-    private var mIsInitUpdateCompl as Lang.Boolean = false;
     private var mUpdating          as Lang.Boolean = false; // Don't start a second chain of updates
 
     function initialize() {
@@ -262,15 +260,118 @@ class HomeAssistantApp extends Application.AppBase {
         mQuitTimer.begin();
     }
 
+    var mTemplates as Lang.Dictionary = {};
     function startUpdates() {
         if (mHaMenu != null and !mUpdating) {
             mItemsToUpdate = mHaMenu.getItemsToUpdate();
             // Start the continuous update process that continues for as long as the application is running.
-            // The chain of functions from 'updateNextMenuItem()' calls 'updateNextMenuItem()' on completion.
+            mTemplates = {};
-            if (mItemsToUpdate.size() > 0) {
+            for (var i = 0; i < mItemsToUpdate.size(); i++) {
-                mUpdating = true;
+                var item = mItemsToUpdate[i];
-                updateNextMenuItemInternal();
+                mTemplates.put(i.toString(), {
+                    "template" => item.buildTemplate()
+                });
             }
+            updateMenuItems();
+        }
+    }
+
+    function onReturnUpdateMenuItems(responseCode as Lang.Number, data as Null or Lang.Dictionary) as Void {
+        // System.println("HomeAssistantApp onReturnUpdateMenuItems() Response Code: " + responseCode);
+        // System.println("HomeAssistantApp onReturnUpdateMenuItems() Response Data: " + data);
+
+        var status = WatchUi.loadResource($.Rez.Strings.Unavailable) as Lang.String;
+        switch (responseCode) {
+            case Communications.BLE_HOST_TIMEOUT:
+            case Communications.BLE_CONNECTION_UNAVAILABLE:
+                // System.println("HomeAssistantApp onReturnUpdateMenuItems() Response Code: BLE_HOST_TIMEOUT or BLE_CONNECTION_UNAVAILABLE, Bluetooth connection severed.");
+                ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoPhone) as Lang.String + ".");
+                break;
+
+            case Communications.BLE_QUEUE_FULL:
+                // System.println("HomeAssistantApp onReturnUpdateMenuItems() Response Code: BLE_QUEUE_FULL, API calls too rapid.");
+                ErrorView.show(WatchUi.loadResource($.Rez.Strings.ApiFlood) as Lang.String);
+                break;
+
+            case Communications.NETWORK_REQUEST_TIMED_OUT:
+                // System.println("HomeAssistantApp onReturnUpdateMenuItems() Response Code: NETWORK_REQUEST_TIMED_OUT, check Internet connection.");
+                ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoResponse) as Lang.String);
+                break;
+
+            case Communications.INVALID_HTTP_BODY_IN_NETWORK_RESPONSE:
+                // System.println("HomeAssistantApp onReturnUpdateMenuItems() Response Code: INVALID_HTTP_BODY_IN_NETWORK_RESPONSE, check JSON is returned.");
+                ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoJson) as Lang.String);
+                break;
+
+            case Communications.NETWORK_RESPONSE_OUT_OF_MEMORY:
+                // System.println("HomeAssistantApp onReturnUpdateMenuItems() Response Code: NETWORK_RESPONSE_OUT_OF_MEMORY, are we going too fast?");
+                var myTimer = new Timer.Timer();
+                // Now this feels very "closely coupled" to the application, but it is the most reliable method instead of using a timer.
+                myTimer.start(method(:updateMenuItems), Globals.scApiBackoff, false);
+                // Revert status
+                status = getApiStatus();
+                break;
+
+            case 404:
+                // System.println("HomeAssistantApp onReturnUpdateMenuItems() Response Code: 404, page not found. Check API URL setting.");
+                ErrorView.show(WatchUi.loadResource($.Rez.Strings.ApiUrlNotFound) as Lang.String);
+                break;
+
+            case 400:
+                // System.println("HomeAssistantApp onReturnUpdateMenuItems() Response Code: 400, bad request. Template error.");
+                ErrorView.show(WatchUi.loadResource($.Rez.Strings.TemplateError) as Lang.String);
+                break;
+
+            case 200:
+                status = WatchUi.loadResource($.Rez.Strings.Available) as Lang.String;
+                for (var i = 0; i < mItemsToUpdate.size(); i++) {
+                    var item = mItemsToUpdate[i];
+                    var state = data.get(i.toString());
+                    item.updateState(state);
+                }
+                var delay = Settings.getPollDelay();
+                if (delay > 0) {
+                    mUpdateTimer.start(method(:updateMenuItems), delay, false);
+                } else {
+                    updateMenuItems();
+                }
+                break;
+
+            default:
+                // System.println("HomeAssistantApp onReturnUpdateMenuItems(): Unhandled HTTP response code = " + responseCode);
+                ErrorView.show(WatchUi.loadResource($.Rez.Strings.UnhandledHttpErr) as Lang.String + responseCode);
+        }
+        setApiStatus(status);
+    }
+
+    function updateMenuItems() as Void {
+        if (! System.getDeviceSettings().phoneConnected) {
+            // System.println("HomeAssistantApp updateMenuItems(): No Phone connection, skipping API call.");
+            ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoPhone) as Lang.String + ".");
+            setApiStatus(WatchUi.loadResource($.Rez.Strings.Unavailable) as Lang.String);
+        } else if (! System.getDeviceSettings().connectionAvailable) {
+            // System.println("HomeAssistantApp updateMenuItems(): No Internet connection, skipping API call.");
+            ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoInternet) as Lang.String + ".");
+            setApiStatus(WatchUi.loadResource($.Rez.Strings.Unavailable) as Lang.String);
+        } else {
+            // https://developers.home-assistant.io/docs/api/native-app-integration/sending-data/#render-templates
+            var url = Settings.getApiUrl() + "/webhook/" + Settings.getWebhookId();
+            // System.println("HomeAssistantApp updateMenuItems() URL=" + url + ", Template='" + mTemplate + "'");
+            Communications.makeWebRequest(
+                url,
+                {
+                    "type" => "render_template",
+                    "data" => mTemplates
+                },
+                {
+                    :method       => Communications.HTTP_REQUEST_METHOD_POST,
+                    :headers      => {
+                        "Content-Type" => Communications.REQUEST_CONTENT_TYPE_JSON
+                    },
+                    :responseType => Communications.HTTP_RESPONSE_CONTENT_TYPE_JSON
+                },
+                method(:onReturnUpdateMenuItems)
+            );
         }
     }
 
@@ -403,45 +504,14 @@ class HomeAssistantApp extends Application.AppBase {
         WatchUi.pushView(mHaMenu, new HomeAssistantViewDelegate(true), WatchUi.SLIDE_IMMEDIATE);
     }
 
-    function updateNextMenuItem() as Void {
-        var delay = Settings.getPollDelay();
-        if (mIsInitUpdateCompl and (delay > 0) and (mNextItemToUpdate == 0)) {
-            mUpdateTimer.start(method(:updateNextMenuItemInternal), delay, false);
-        } else {
-            updateNextMenuItemInternal();
-        }
-    }
-
     // Only call this function if Settings.getPollDelay() > 0. This must be tested locally as it is then efficient to take
     // alternative action if the test fails.
     function forceStatusUpdates() as Void {
         // Don't mess with updates unless we are using a timer.
         if (Settings.getPollDelay() > 0) {
             mUpdateTimer.stop();
-            mIsInitUpdateCompl = false;
-            // Start from the beginning, or we will only get a partial round of updates before mIsInitUpdateCompl is flipped.
-            mNextItemToUpdate = 0;
             // For immediate updates
-            updateNextMenuItem();
+            updateMenuItems();
-        }
-    }
-
-    // We need to spread out the API calls so as not to overload the results queue and cause Communications.BLE_QUEUE_FULL
-    // (-101) error. This function is called by a timer every Globals.menuItemUpdateInterval ms.
-    function updateNextMenuItemInternal() as Void {
-        if (mItemsToUpdate != null) {
-            // System.println("HomeAssistantApp updateNextMenuItemInternal(): Doing update for item " + mNextItemToUpdate + ", mIsInitUpdateCompl=" + mIsInitUpdateCompl);
-            mItemsToUpdate[mNextItemToUpdate].getState();
-            // mNextItemToUpdate = (mNextItemToUpdate + 1) % mItemsToUpdate.size() - But with roll-over detection
-            if (mNextItemToUpdate == mItemsToUpdate.size()-1) {
-                // Last item completed return to the start of the list
-                mNextItemToUpdate  = 0;
-                mIsInitUpdateCompl = true;
-            } else {
-                mNextItemToUpdate++;
-            }
-        // } else {
-        //     System.println("HomeAssistantApp updateNextMenuItemInternal(): No menu items to update");
         }
     }
 

source/HomeAssistantGroupMenuItem.mc

@@ -22,7 +22,8 @@
 using Toybox.Lang;
 using Toybox.WatchUi;
 
-class HomeAssistantGroupMenuItem extends TemplateMenuItem {
+class HomeAssistantGroupMenuItem extends WatchUi.IconMenuItem {
+    private var mTemplate as Lang.String or Null;
     private var mMenu as HomeAssistantView;
 
     function initialize(
@@ -34,20 +35,33 @@ class HomeAssistantGroupMenuItem extends TemplateMenuItem {
         } or Null
     ) {
 
-        TemplateMenuItem.initialize(
+        WatchUi.IconMenuItem.initialize(
             definition.get("name") as Lang.String,
-            template,
+            null,
-            // Now this feels very "closely coupled" to the application, but it is the most reliable method instead of using a timer.
+            null,
-            getApp().method(:updateNextMenuItem),
             icon,
             options
         );
 
+        mTemplate = template;
         mMenu = new HomeAssistantView(definition, null);
     }
 
+    function buildTemplate() as Lang.String or Null {
+        return mTemplate;
+    }
+
+    function updateState(data as Lang.String or Null) as Void {
+        setSubLabel(data);
+        WatchUi.requestUpdate();
+    }
+
     function getMenuView() as HomeAssistantView {
         return mMenu;
     }
 
+    function hasTemplate() as Lang.Boolean {
+        return mTemplate != null;
+    }
+
 }

source/HomeAssistantTapMenuItem.mc

@@ -53,6 +53,13 @@ class HomeAssistantTapMenuItem extends WatchUi.IconMenuItem {
         mData                 = data;
     }
 
+    function buildTemplate() as Lang.String or Null {
+        return null;
+    }
+
+    function updateState(data as Lang.String or Null) as Void {
+    }
+
     function callService() as Void {
         if (mConfirm) {
             WatchUi.pushView(

source/HomeAssistantTemplateMenuItem.mc

@@ -26,8 +26,9 @@ using Toybox.Lang;
 using Toybox.WatchUi;
 using Toybox.Graphics;
 
-class HomeAssistantTemplateMenuItem extends TemplateMenuItem {
+class HomeAssistantTemplateMenuItem extends WatchUi.IconMenuItem {
     private var mHomeAssistantService as HomeAssistantService;
+    private var mTemplate             as Lang.String;
     private var mService              as Lang.String or Null;
     private var mConfirm              as Lang.Boolean;
     private var mData                 as Lang.Dictionary or Null;
@@ -44,21 +45,30 @@ class HomeAssistantTemplateMenuItem extends TemplateMenuItem {
         } or Null,
         haService as HomeAssistantService
     ) {
-        TemplateMenuItem.initialize(
+        WatchUi.IconMenuItem.initialize(
             label,
-            template,
+            null,
-            // Now this feels very "closely coupled" to the application, but it is the most reliable method instead of using a timer.
+            null,
-            getApp().method(:updateNextMenuItem),
             icon,
             options
         );
 
         mHomeAssistantService = haService;
+        mTemplate             = template;
         mService              = service;
         mConfirm              = confirm;
         mData                 = data;
     }
 
+    function buildTemplate() as Lang.String or Null {
+        return mTemplate;
+    }
+
+    function updateState(data as Lang.String or Null) as Void {
+        setSubLabel(data);
+        WatchUi.requestUpdate();
+    }
+
     function callService() as Void {
         if (mConfirm) {
             WatchUi.pushView(

source/HomeAssistantToggleMenuItem.mc

@@ -57,117 +57,26 @@ class HomeAssistantToggleMenuItem extends WatchUi.ToggleMenuItem {
         }
     }
 
-    // Callback function after completing the GET request to fetch the status.
+    function buildTemplate() as Lang.String or Null {
-    // Terminate updating the toggle menu items via the chain of calls for a permanent network
+        if (mTemplate == null) {
-    // error. The ErrorView cancellation will resume the call chain.
+            return "{{states('" + mData.get("entity_id") + "')}}";
-    //
-    function onReturnGetState(responseCode as Lang.Number, data as Null or Lang.Dictionary or Lang.String) as Void {
-        // System.println("HomeAssistantToggleMenuItem onReturnGetState() Response Code: " + responseCode);
-        // System.println("HomeAssistantToggleMenuItem onReturnGetState() Response Data: " + data);
-
-        var status = WatchUi.loadResource($.Rez.Strings.Unavailable) as Lang.String;
-        switch (responseCode) {
-            case Communications.BLE_HOST_TIMEOUT:
-            case Communications.BLE_CONNECTION_UNAVAILABLE:
-                // System.println("HomeAssistantToggleMenuItem onReturnGetState() Response Code: BLE_HOST_TIMEOUT or BLE_CONNECTION_UNAVAILABLE, Bluetooth connection severed.");
-                ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoPhone) as Lang.String + ".");
-                break;
-
-            case Communications.BLE_QUEUE_FULL:
-                // System.println("HomeAssistantToggleMenuItem onReturnGetState() Response Code: BLE_QUEUE_FULL, API calls too rapid.");
-                ErrorView.show(WatchUi.loadResource($.Rez.Strings.ApiFlood) as Lang.String);
-                break;
-
-            case Communications.NETWORK_REQUEST_TIMED_OUT:
-                // System.println("HomeAssistantToggleMenuItem onReturnGetState() Response Code: NETWORK_REQUEST_TIMED_OUT, check Internet connection.");
-                ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoResponse) as Lang.String);
-                break;
-
-            case Communications.INVALID_HTTP_BODY_IN_NETWORK_RESPONSE:
-                // System.println("HomeAssistantToggleMenuItem onReturnGetState() Response Code: INVALID_HTTP_BODY_IN_NETWORK_RESPONSE, check JSON is returned.");
-                ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoJson) as Lang.String);
-                break;
-
-            case Communications.NETWORK_RESPONSE_OUT_OF_MEMORY:
-                // System.println("HomeAssistantToggleMenuItem onReturnGetState() Response Code: NETWORK_RESPONSE_OUT_OF_MEMORY, are we going too fast?");
-                var myTimer = new Timer.Timer();
-                // Abandon the update to this menu item, and any template, and move on to the next with a back-off delay.
-                // Now this feels very "closely coupled" to the application, but it is the most reliable method instead of using a timer.
-                myTimer.start(getApp().method(:updateNextMenuItem), Globals.scApiBackoff, false);
-                // Revert status
-                status = getApp().getApiStatus();
-                break;
-
-            case 404:
-                var msg = null;
-                if (data != null) {
-                    msg = data.get("message");
-                }
-                if (msg != null) {
-                    // Should be an HTTP 404 according to curl queries
-                    // System.println("HomeAssistantToggleMenuItem onReturnGetState() Response Code: 404. " + mData.get("entity_id") + " " + msg);
-                    ErrorView.show("HTTP 404, " + mData.get("entity_id") + ". " + data.get("message"));
-                } else {
-                    // System.println("HomeAssistantToggleMenuItem onReturnGetState() Response Code: 404, page not found. Check API URL setting.");
-                    ErrorView.show(WatchUi.loadResource($.Rez.Strings.ApiUrlNotFound) as Lang.String);
-                }
-                break;
-
-            case 405:
-                // System.println("HomeAssistantToggleMenuItem onReturnGetState() Response Code: 405. " + mData.get("entity_id") + " " + data.get("message"));
-                ErrorView.show("HTTP 405, " + mData.get("entity_id") + ". " + data.get("message"));
-
-                break;
-
-            case 200:
-                status = WatchUi.loadResource($.Rez.Strings.Available) as Lang.String;
-                var state = data.get("state") as Lang.String;
-                // System.println((data.get("attributes") as Lang.Dictionary).get("friendly_name") + " State=" + state);
-                if (getLabel().equals("...")) {
-                    setLabel((data.get("attributes") as Lang.Dictionary).get("friendly_name") as Lang.String);
-                }
-                setUiToggle(state);
-                if (mTemplate == null) {
-                    // Nothing more to do
-                    // Now this feels very "closely coupled" to the application, but it is the most reliable method instead of using a timer.
-                    getApp().updateNextMenuItem();
-                } else {
-                    updateTemplate();
-                }
-                break;
-
-            default:
-                // System.println("HomeAssistantToggleMenuItem onReturnGetState(): Unhandled HTTP response code = " + responseCode);
-                ErrorView.show(WatchUi.loadResource($.Rez.Strings.UnhandledHttpErr) as Lang.String + responseCode);
         }
-        getApp().setApiStatus(status);
+        return "{{states('" + mData.get("entity_id") + "')}}," + mTemplate;
     }
 
-    function getState() as Void {
+    function updateState(data as Lang.String or Null) as Void {
-        if (! System.getDeviceSettings().phoneConnected) {
+        if (data == null) {
-            // System.println("HomeAssistantToggleMenuItem getState(): No Phone connection, skipping API call.");
+            setSubLabel(null);
-            ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoPhone) as Lang.String + ".");
+            WatchUi.requestUpdate();
-            getApp().setApiStatus(WatchUi.loadResource($.Rez.Strings.Unavailable) as Lang.String);
+            return;
-        } else if (! System.getDeviceSettings().connectionAvailable) {
-            // System.println("HomeAssistantToggleMenuItem getState(): No Internet connection, skipping API call.");
-            ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoInternet) as Lang.String + ".");
-            getApp().setApiStatus(WatchUi.loadResource($.Rez.Strings.Unavailable) as Lang.String);
-        } else {
-            var url = Settings.getApiUrl() + "/states/" + mData.get("entity_id");
-            // System.println("HomeAssistantToggleMenuItem getState() URL=" + url);
-            Communications.makeWebRequest(
-                url,
-                null,
-                {
-                    :method  => Communications.HTTP_REQUEST_METHOD_GET,
-                    :headers => {
-                        "Authorization" => "Bearer " + Settings.getApiKey()
-                    },
-                    :responseType => Communications.HTTP_RESPONSE_CONTENT_TYPE_JSON
-                },
-                method(:onReturnGetState)
-            );
         }
+        if (mTemplate == null) {
+            setUiToggle(data);
+            return;
+        }
+        var split = data.find(",");
+        setSubLabel(data.substring(split + 1, data.length()));
+        setUiToggle(data.substring(0, split));
     }
 
     // Callback function after completing the POST request to set the status.
@@ -281,127 +190,4 @@ class HomeAssistantToggleMenuItem extends WatchUi.ToggleMenuItem {
         setState(b);
     }
 
-    // Callback function after completing the GET request to fetch the status.
-    // Terminate updating the toggle menu items via the chain of calls for a permanent network
-    // error. The ErrorView cancellation will resume the call chain.
-    //
-    function onReturnUpdateTemplate(responseCode as Lang.Number, data as Null or Lang.Dictionary) as Void {
-        // System.println("HomeAssistantTemplateMenuItem onReturnGetState() Response Code: " + responseCode);
-        // System.println("HomeAssistantTemplateMenuItem onReturnGetState() Response Data: " + data);
-
-        var status = WatchUi.loadResource($.Rez.Strings.Unavailable) as Lang.String;
-        switch (responseCode) {
-            case Communications.BLE_HOST_TIMEOUT:
-            case Communications.BLE_CONNECTION_UNAVAILABLE:
-                // System.println("HomeAssistantTemplateMenuItem onReturnGetState() Response Code: BLE_HOST_TIMEOUT or BLE_CONNECTION_UNAVAILABLE, Bluetooth connection severed.");
-                ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoPhone) as Lang.String + ".");
-                break;
-
-            case Communications.BLE_QUEUE_FULL:
-                // System.println("HomeAssistantTemplateMenuItem onReturnGetState() Response Code: BLE_QUEUE_FULL, API calls too rapid.");
-                ErrorView.show(WatchUi.loadResource($.Rez.Strings.ApiFlood) as Lang.String);
-                break;
-
-            case Communications.NETWORK_REQUEST_TIMED_OUT:
-                // System.println("HomeAssistantTemplateMenuItem onReturnGetState() Response Code: NETWORK_REQUEST_TIMED_OUT, check Internet connection.");
-                ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoResponse) as Lang.String);
-                break;
-
-            case Communications.INVALID_HTTP_BODY_IN_NETWORK_RESPONSE:
-                // System.println("HomeAssistantTemplateMenuItem onReturnGetState() Response Code: INVALID_HTTP_BODY_IN_NETWORK_RESPONSE, check JSON is returned.");
-                ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoJson) as Lang.String);
-                break;
-
-            case Communications.NETWORK_RESPONSE_OUT_OF_MEMORY:
-                // System.println("HomeAssistantTemplateMenuItem onReturnGetState() Response Code: NETWORK_RESPONSE_OUT_OF_MEMORY, are we going too fast?");
-                var myTimer = new Timer.Timer();
-                // Now this feels very "closely coupled" to the application, but it is the most reliable method instead of using a timer.
-                myTimer.start(getApp().method(:updateNextMenuItem), Globals.scApiBackoff, false);
-                // Revert status
-                status = getApp().getApiStatus();
-                break;
-
-            case 404:
-                // System.println("HomeAssistantTemplateMenuItem onReturnGetState() Response Code: 404, page not found. Check API URL setting.");
-                ErrorView.show(WatchUi.loadResource($.Rez.Strings.ApiUrlNotFound) as Lang.String);
-                break;
-
-            case 400:
-                // System.println("HomeAssistantTemplateMenuItem onReturnGetState() Response Code: 400, bad request. Template error.");
-                ErrorView.show(WatchUi.loadResource($.Rez.Strings.TemplateError) as Lang.String);
-                break;
-
-            case 200:
-                status = WatchUi.loadResource($.Rez.Strings.Available) as Lang.String;
-                var label = data.get("request");
-                if (label == null) {
-                    setSubLabel($.Rez.Strings.Empty);
-                } else if(label instanceof Lang.String) {
-                    setSubLabel(label);
-                } else if(label instanceof Lang.Dictionary) {
-                    // System.println("HomeAssistantTemplateMenuItem onReturnGetState() label = " + label);
-                    if (label.get("error") != null) {
-                        setSubLabel($.Rez.Strings.TemplateError);
-                    } else {
-                        setSubLabel($.Rez.Strings.PotentialError);
-                    }
-                } else {
-                    // The template must return a Lang.String, a number can be either integer or float and hence cannot be formatted locally without error.
-                    setSubLabel(WatchUi.loadResource($.Rez.Strings.TemplateError) as Lang.String);
-                }
-                requestUpdate();
-                // Now this feels very "closely coupled" to the application, but it is the most reliable method instead of using a timer.
-                getApp().updateNextMenuItem();
-                break;
-
-            default:
-                // System.println("HomeAssistantTemplateMenuItem onReturnGetState(): Unhandled HTTP response code = " + responseCode);
-                ErrorView.show(WatchUi.loadResource($.Rez.Strings.UnhandledHttpErr) as Lang.String + responseCode);
-        }
-        getApp().setApiStatus(status);
-    }
-
-    // Massive code duplication from TemplateMenuItem, but cannot inherit from two classes.
-    //
-    function updateTemplate() as Void {
-        if (mTemplate == null) {
-            // Nothing to do here.
-            // Now this feels very "closely coupled" to the application, but it is the most reliable method instead of using a timer.
-            getApp().updateNextMenuItem();
-        } else {
-            if (! System.getDeviceSettings().phoneConnected) {
-                // System.println("HomeAssistantTemplateMenuItem getState(): No Phone connection, skipping API call.");
-                ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoPhone) as Lang.String + ".");
-                getApp().setApiStatus(WatchUi.loadResource($.Rez.Strings.Unavailable) as Lang.String);
-            } else if (! System.getDeviceSettings().connectionAvailable) {
-                // System.println("HomeAssistantTemplateMenuItem getState(): No Internet connection, skipping API call.");
-                ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoInternet) as Lang.String + ".");
-                getApp().setApiStatus(WatchUi.loadResource($.Rez.Strings.Unavailable) as Lang.String);
-            } else {
-                // https://developers.home-assistant.io/docs/api/native-app-integration/sending-data/#render-templates
-                var url = Settings.getApiUrl() + "/webhook/" + Settings.getWebhookId();
-                // System.println("HomeAssistantTemplateMenuItem getState() URL=" + url + ", Template='" + mTemplate + "'");
-                Communications.makeWebRequest(
-                    url,
-                    {
-                        "type" => "render_template",
-                        "data" => {
-                            "request" => {
-                                "template" => mTemplate
-                            }
-                        }
-                    },
-                    {
-                        :method       => Communications.HTTP_REQUEST_METHOD_POST,
-                        :headers      => {
-                            "Content-Type" => Communications.REQUEST_CONTENT_TYPE_JSON
-                        },
-                        :responseType => Communications.HTTP_RESPONSE_CONTENT_TYPE_JSON
-                    },
-                    method(:onReturnUpdateTemplate)
-                );
-            }
-        }
-    }
-
 }

source/TemplateMenuItem.mc

@@ -1,182 +0,0 @@
-//-----------------------------------------------------------------------------------
-//
-// Distributed under MIT Licence
-//   See https://github.com/house-of-abbey/GarminHomeAssistant/blob/main/LICENSE.
-//
-//-----------------------------------------------------------------------------------
-//
-// GarminHomeAssistant is a Garmin IQ application written in Monkey C and routinely
-// tested on a Venu 2 device. The source code is provided at:
-//            https://github.com/house-of-abbey/GarminHomeAssistant.
-//
-// P A Abbey & J D Abbey, 24 August 2024
-//
-//
-// Description:
-//
-// Menu button that renders a Home Assistant Template.
-//
-// Reference:
-//  * https://developers.home-assistant.io/docs/api/rest/
-//  * https://www.home-assistant.io/docs/configuration/templating
-//
-//-----------------------------------------------------------------------------------
-
-using Toybox.Lang;
-using Toybox.WatchUi;
-using Toybox.Graphics;
-
-class TemplateMenuItem extends WatchUi.IconMenuItem {
-    private var mTemplate as Lang.String;
-    private var mCallback as Method() as Void;
-
-    function initialize(
-        label    as Lang.String or Lang.Symbol,
-        template as Lang.String,
-        // Do not use Lang.Method as it does not compile!
-        callback as Method() as Void,
-        icon     as Graphics.BitmapType or WatchUi.Drawable,
-        options  as {
-            :alignment as WatchUi.MenuItem.Alignment
-        } or Null
-    ) {
-        WatchUi.IconMenuItem.initialize(
-            label,
-            null,
-            null,
-            icon,
-            options
-        );
-
-        mTemplate = template;
-        mCallback = callback;
-    }
-
-    // Callback function after completing the GET request to fetch the status.
-    // Terminate updating the toggle menu items via the chain of calls for a permanent network
-    // error. The ErrorView cancellation will resume the call chain.
-    //
-    function onReturnGetState(responseCode as Lang.Number, data as Null or Lang.Dictionary) as Void {
-        // System.println("TemplateMenuItem onReturnGetState() Response Code: " + responseCode);
-        // System.println("TemplateMenuItem onReturnGetState() Response Data: " + data);
-
-        var status = WatchUi.loadResource($.Rez.Strings.Unavailable) as Lang.String;
-        switch (responseCode) {
-            case Communications.BLE_HOST_TIMEOUT:
-            case Communications.BLE_CONNECTION_UNAVAILABLE:
-                // System.println("TemplateMenuItem onReturnGetState() Response Code: BLE_HOST_TIMEOUT or BLE_CONNECTION_UNAVAILABLE, Bluetooth connection severed.");
-                ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoPhone) as Lang.String + ".");
-                break;
-
-            case Communications.BLE_QUEUE_FULL:
-                // System.println("TemplateMenuItem onReturnGetState() Response Code: BLE_QUEUE_FULL, API calls too rapid.");
-                ErrorView.show(WatchUi.loadResource($.Rez.Strings.ApiFlood) as Lang.String);
-                break;
-
-            case Communications.NETWORK_REQUEST_TIMED_OUT:
-                // System.println("TemplateMenuItem onReturnGetState() Response Code: NETWORK_REQUEST_TIMED_OUT, check Internet connection.");
-                ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoResponse) as Lang.String);
-                break;
-
-            case Communications.INVALID_HTTP_BODY_IN_NETWORK_RESPONSE:
-                // System.println("TemplateMenuItem onReturnGetState() Response Code: INVALID_HTTP_BODY_IN_NETWORK_RESPONSE, check JSON is returned.");
-                ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoJson) as Lang.String);
-                break;
-
-            case Communications.NETWORK_RESPONSE_OUT_OF_MEMORY:
-                // System.println("TemplateMenuItem onReturnGetState() Response Code: NETWORK_RESPONSE_OUT_OF_MEMORY, are we going too fast?");
-                var myTimer = new Timer.Timer();
-                // Now this feels very "closely coupled" to the application, but it is the most reliable method instead of using a timer.
-                myTimer.start(getApp().method(:updateNextMenuItem), Globals.scApiBackoff, false);
-                // Revert status
-                status = getApp().getApiStatus();
-                break;
-
-            case 404:
-                // System.println("TemplateMenuItem onReturnGetState() Response Code: 404, page not found. Check API URL setting.");
-                ErrorView.show(WatchUi.loadResource($.Rez.Strings.ApiUrlNotFound) as Lang.String);
-                break;
-
-            case 400:
-                // System.println("TemplateMenuItem onReturnGetState() Response Code: 400, bad request. Template error.");
-                ErrorView.show(WatchUi.loadResource($.Rez.Strings.TemplateError) as Lang.String);
-                break;
-
-            case 200:
-                status = WatchUi.loadResource($.Rez.Strings.Available) as Lang.String;
-                var label = data.get("request");
-                if (label == null) {
-                    setSubLabel($.Rez.Strings.Empty);
-                } else if(label instanceof Lang.String) {
-                    setSubLabel(label);
-                } else if(label instanceof Lang.Dictionary) {
-                    // System.println("TemplateMenuItem onReturnGetState() label = " + label);
-                    if (label.get("error") != null) {
-                        setSubLabel($.Rez.Strings.TemplateError);
-                    } else {
-                        setSubLabel($.Rez.Strings.PotentialError);
-                    }
-                } else {
-                    // The template must return a Lang.String, a number can be either integer or float and hence cannot be formatted locally without error.
-                    setSubLabel(WatchUi.loadResource($.Rez.Strings.TemplateError) as Lang.String);
-                }
-                requestUpdate();
-                if (mCallback != null) {
-                    mCallback.invoke();
-                }
-                break;
-
-            default:
-                // System.println("TemplateMenuItem onReturnGetState(): Unhandled HTTP response code = " + responseCode);
-                ErrorView.show(WatchUi.loadResource($.Rez.Strings.UnhandledHttpErr) as Lang.String + responseCode);
-        }
-        getApp().setApiStatus(status);
-    }
-
-    function getState() as Void {
-        if (mTemplate == null) {
-            // Nothing to do here.
-            if (mCallback != null) {
-                mCallback.invoke();
-            }
-        } else {
-            if (! System.getDeviceSettings().phoneConnected) {
-                // System.println("TemplateMenuItem getState(): No Phone connection, skipping API call.");
-                ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoPhone) as Lang.String + ".");
-                getApp().setApiStatus(WatchUi.loadResource($.Rez.Strings.Unavailable) as Lang.String);
-            } else if (! System.getDeviceSettings().connectionAvailable) {
-                // System.println("TemplateMenuItem getState(): No Internet connection, skipping API call.");
-                ErrorView.show(WatchUi.loadResource($.Rez.Strings.NoInternet) as Lang.String + ".");
-                getApp().setApiStatus(WatchUi.loadResource($.Rez.Strings.Unavailable) as Lang.String);
-            } else {
-                // https://developers.home-assistant.io/docs/api/native-app-integration/sending-data/#render-templates
-                var url = Settings.getApiUrl() + "/webhook/" + Settings.getWebhookId();
-                // System.println("TemplateMenuItem getState() URL=" + url + ", Template='" + mTemplate + "'");
-                Communications.makeWebRequest(
-                    url,
-                    {
-                        "type" => "render_template",
-                        "data" => {
-                            "request" => {
-                                "template" => mTemplate
-                            }
-                        }
-                    },
-                    {
-                        :method       => Communications.HTTP_REQUEST_METHOD_POST,
-                        :headers      => {
-                            "Content-Type" => Communications.REQUEST_CONTENT_TYPE_JSON
-                        },
-                        :responseType => Communications.HTTP_RESPONSE_CONTENT_TYPE_JSON
-                    },
-                    method(:onReturnGetState)
-                );
-            }
-        }
-    }
-
-    function hasTemplate() as Lang.Boolean {
-        return (mTemplate != null);
-    }
-
-}